<template>
  <div class='login'>
    <el-form ref='loginForm' :model='loginForm' :rules='loginRules' class='login-form'>
      <h3 class='title'>{{ $locale('formMaking.StudentView.Integrated System of Electrical, Electronic and Physical Engineering') }}</h3>
      <el-form-item prop='username'>
        <el-input
          v-model='loginForm.username'
          auto-complete='off'
          :placeholder="$locale('register.account number')"
          type='text'
        >
          <svg-icon slot='prefix' class='el-input__icon input-icon' icon-class='user' />
        </el-input>
      </el-form-item>
      <el-form-item prop='password'>
        <el-input
          v-model='loginForm.password'
          auto-complete='off'
          :placeholder="$locale('student.add.password')"
          type='password'
          @keyup.enter.native='handleLogin'
        >
          <svg-icon slot='prefix' class='el-input__icon input-icon' icon-class='password' />
        </el-input>
      </el-form-item>
      <el-form-item v-if='captchaEnabled' prop='code'>
        <el-input
          v-model='loginForm.code'
          auto-complete='off'
          :placeholder="$locale('register.Verification code')"
          style='width: 63%'
          @keyup.enter.native='handleLogin'
        >
          <svg-icon slot='prefix' class='el-input__icon input-icon' icon-class='validCode' />
        </el-input>
        <div class='login-code'>
          <img :src='codeUrl' class='login-code-img' @click='getCode' />
        </div>
      </el-form-item>
      <el-checkbox v-model='loginForm.rememberMe' style='margin:0px 0px 25px 0px;'>{{ $locale('login.remember password') }}</el-checkbox>
      <el-form-item style='width:100%;'>
        <el-button
          :loading='loading'
          size='medium'
          style='width:100%;'
          type='primary'
          @click.native.prevent='handleLogin'
        >
          <span v-if='!loading'>{{ $locale('login.Sign in') }}</span>
          <span v-else>{{ $locale('login.Logging in ..') }}</span>
        </el-button>
        <div v-if='register' style='float: right;'>
          <router-link :to="'/register'" class='link-type'>{{ $locale('login.Register Now') }}</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class='el-login-footer'>
      <span>Copyright © 2018-2024 ruoyi.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import { getCodeImg } from '@/api/login'
import Cookies from 'js-cookie'
import { decrypt, encrypt } from '@/utils/jsencrypt'

export default {
  name: 'Login',
  data() {
    return {
      codeUrl: '',
      loginForm: {
        username: 'admin',
        password: 'admin123',
        rememberMe: false,
        code: '',
        uuid: '',
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', message: this.$locale('register.Please enter your account') },
        ],
        password: [
          { required: true, trigger: 'blur', message: this.$locale('register.Please enter your password') },
        ],
        code: [{ required: true, trigger: 'change', message: this.$locale('register.Please enter the verification code') }],
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined,
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true,
    },
  },
  created() {
    this.getCode()
    this.getCookie()
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
        if (this.captchaEnabled) {
          this.codeUrl = 'data:image/gif;base64,' + res.img
          this.loginForm.uuid = res.uuid
        }
      })
    },
    getCookie() {
      const username = Cookies.get('username')
      const password = Cookies.get('password')
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          if (this.loginForm.rememberMe) {
            Cookies.set('username', this.loginForm.username, { expires: 30 })
            Cookies.set('password', encrypt(this.loginForm.password), { expires: 30 })
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 })
          } else {
            Cookies.remove('username')
            Cookies.remove('password')
            Cookies.remove('rememberMe')
          }
          this.$store.dispatch('Login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' }).catch(() => {
            })
          }).catch(() => {
            this.loading = false
            if (this.captchaEnabled) {
              this.getCode()
            }
          })
        }
      })
    },
  },
}
</script>

<style lang='scss' rel='stylesheet/scss'>
.login {
  display: flex;
  //justify-content: center;
  justify-content: flex-end;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/bg.png");
  background-size: cover;
  box-sizing: border-box;
  padding: 0 128px;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  font-weight: 700;
  font-size: 30px;
  font-family: simsun, sans-serif;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
</style>
